package com.adagio.util;

import java.io.UnsupportedEncodingException;
import java.text.DecimalFormat;
import java.util.Random;
import java.util.UUID;

public class RandomUtil {

	private static final String[] firstName = {"赵","钱","孙","李","周","吴","郑","王","冯","陈","褚","卫","蒋","沈","韩","杨","朱","秦","尤","许",  
            "何","吕","施","张","孔","曹","严","华","金","魏","陶","姜","戚","谢","邹","喻","柏","水","窦","章","云","苏","潘","葛","奚","范","彭","郎",  
            "鲁","韦","昌","马","苗","凤","花","方","俞","任","袁","柳","酆","鲍","史","唐","费","廉","岑","薛","雷","贺","倪","汤","滕","殷",  
            "罗","毕","郝","邬","安","常","乐","于","时","傅","皮","卞","齐","康","伍","余","元","卜","顾","孟","平","黄","和",  
            "穆","萧","尹","姚","邵","湛","汪","祁","毛","禹","狄","米","贝","明","臧","计","伏","成","戴","谈","宋","茅","庞","熊","纪","舒",  
            "屈","项","祝","董","梁","杜","阮","蓝","闵","席","季","麻","强","贾","路","娄","危","江","童","颜","郭","梅","盛","林","刁","钟",  
            "徐","邱","骆","高","夏","蔡","田","樊","胡","凌","霍","虞","万","支","柯","昝","管","卢","莫","经","房","裘","缪","干","解","应",  
            "宗","丁","宣","贲","邓","郁","单","杭","洪","包","诸","左","石","崔","吉","钮","龚","程","嵇","邢","滑","裴","陆","荣","翁","荀",  
            "羊","于","惠","甄","曲","家","封","芮","羿","储","靳","汲","邴","糜","松","井","段","富","巫","乌","焦","巴","弓","牧","隗","山",  
            "谷","车","侯","宓","蓬","全","郗","班","仰","秋","仲","伊","宫","宁","仇","栾","暴","甘","钭","厉","戎","祖","武","符","刘","景",  
            "詹","束","龙","叶","幸","司","韶","郜","黎","蓟","溥","印","宿","白","怀","蒲","邰","从","鄂","索","咸","籍","赖","卓","蔺","屠",  
            "蒙","池","乔","阴","郁","胥","能","苍","双","闻","莘","党","翟","谭","贡","劳","逄","姬","申","扶","堵","冉","宰","郦","雍","却",  
            "璩","桑","桂","濮","牛","寿","通","边","扈","燕","冀","浦","尚","农","温","别","庄","晏","柴","瞿","阎","充","慕","连","茹","习",  
            "宦","艾","鱼","容","向","古","易","慎","戈","廖","庾","终","暨","居","衡","步","都","耿","满","弘","匡","国","文","寇","广","禄",  
            "阙","东","欧","殳","沃","利","蔚","越","夔","隆","师","巩","厍","聂","晁","勾","敖","融","冷","訾","辛","阚","那","简","饶","空",  
            "曾","毋","沙","乜","养","鞠","须","丰","巢","关","蒯","相","查","后","荆","红","游","郏","竺","权","逯","盖","益","桓","公","仉",  
            "督","岳","帅","缑","亢","况","郈","有","琴","归","海","晋","楚","闫","法","汝","鄢","涂","钦","商","牟","佘","佴","伯","赏","墨",  
            "哈","谯","篁","年","爱","阳","佟","言","福","南","火","铁","迟","漆","官","冼","真","展","繁","檀","祭","密","敬","揭","舜","楼",  
            "疏","冒","浑","挚","胶","随","高","皋","原","种","练","弥","仓","眭","蹇","覃","阿","门","恽","来","綦","召","仪","风","介","巨",  
            "木","京","狐","郇","虎","枚","抗","达","杞","苌","折","麦","庆","过","竹","端","鲜","皇","亓","老","是","秘","畅","邝","还","宾",  
            "闾","辜","纵","侴","万俟","司马","上官","欧阳","夏侯","诸葛","闻人","东方","赫连","皇甫","羊舌","尉迟","公羊","澹台","公冶","宗正",  
            "濮阳","淳于","单于","太叔","申屠","公孙","仲孙","轩辕","令狐","钟离","宇文","长孙","慕容","鲜于","闾丘","司徒","司空","兀官","司寇",  
            "南门","呼延","子车","颛孙","端木","巫马","公西","漆雕","车正","壤驷","公良","拓跋","夹谷","宰父","谷梁","段干","百里","东郭","微生",  
            "梁丘","左丘","东门","西门","南宫","第五","公仪","公乘","太史","仲长","叔孙","屈突","尔朱","东乡","相里","胡母","司城","张廖","雍门",  
            "毋丘","贺兰","綦毋","屋庐","独孤","南郭","北宫","王孙"}; 
	
	//中国前一百的姓氏
	private static final char[] commonFirstName = "王张刘陈杨黄赵吴周徐孙马朱胡郭何高林罗郑梁谢宋唐许韩冯邓曹彭曾萧田董潘袁于蒋蔡余杜叶程苏魏吕丁任沈姚卢姜崔钟谭陆汪范金石廖贾夏韦傅方白邹孟熊秦邱江尹薛阎段雷侯龙史陶黎贺顾毛郝龚邵万钱严覃武戴莫孔向汤".toCharArray();
	
	private static String[] sexs = {"先生", "女士"};
	private static Random random = new Random(System.currentTimeMillis());  
	
	// 定义验证码字符.去除了O、I、l、、等容易混淆的字母
	public static final char authCodeAll[] = { 
			'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'J', 'K', 'M', 'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 
			'a', 'c', 'd', 'e', 'f', 'g', 'h', 'k', 'm', 'n', 'p', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 
			'3', '4', '5', '7', '8' };
	
	// 定义验证码数字
	public static final char authCodeNumber[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' };
	
	public static final int authCodeAllLength = authCodeAll.length;
	public static final int authCodeNumberLength = authCodeNumber.length;
	
	/**
	 * 生成验证码
	 * @return
	 */
	public static char getAuthCodeAllChar() {
		return authCodeAll[number(0, authCodeAllLength)];
	}
	
	/**
	 * 生成验证码
	 * @return
	 */
	public static String getAuthCodeAll(int length) {
		StringBuilder sb = new StringBuilder();
		for (int i = 0; i < length; i++) {
			sb.append(authCodeAll[number(0, length)]);
		}
		return sb.toString();
	}
	
	/**
	 * 生成验证码，纯数字
	 * @return
	 */
	public static String getAuthCodeNumber(int length) {
		StringBuilder sb = new StringBuilder();
		for (int i = 0; i < length; i++) {
			sb.append(authCodeNumber[number(0, length)]);
		}
		return sb.toString();
	}
	
	/**
	 * 获取UUID by jdk
	 * @author 董华健    2012-9-7 下午2:22:18
	 * @return
	 */
	public static String getUuid(boolean is32bit){
		String uuid = UUID.randomUUID().toString();
		if(is32bit){
			return uuid.toString().replace("-", ""); 
		}
		return uuid;
	}
	
	/**
	 * 产生两个数之间的随机数
	 * @param min 小数
	 * @param max 比min大的数
	 * @return int 随机数字
	 */
	public static int number(int min, int max) {
		return min + random.nextInt(max - min);
	}
	
	/**
	 * 产生0--number的随机数,不包括num
	 * @param number   数字
	 * @return int 随机数字
	 */
	public static int number(int number) {
		return random.nextInt(number);
	}
	
	/**
	 * 生成RGB随机数
	 * @return
	 */
	public static int[] getRandomRgb() {
		int[] rgb = new int[3];
		for (int i = 0; i < 3; i++) {
			rgb[i] = random.nextInt(255);
		}
		return rgb;
	}
		
	
	/**
	 * 随机生成姓氏  
	 * @return
	 */
	public static String randomFirstName(){
		int index=random.nextInt(firstName.length-1);       
        return firstName[index]; 
	}
	
	/**
	 * 随机生成常见姓氏  
	 * @return
	 */
	public static String randomCommonFirstName(){
		int index = random.nextInt(commonFirstName.length-1);       
        return String.valueOf(commonFirstName[index]); 
	}
	
	/**
	 * 随机生成一到两个中文名
	 * @return
	 */
	 public static String randomChineseName() {  
		 String str = null;  
		 int highPos, lowPos;  
		 
		 highPos = (176 + Math.abs(random.nextInt(71)));//区码，0xA0打头，从第16区开始，即0xB0=11*16=176,16~55一级汉字，56~87二级汉字  
		 lowPos = 161 + Math.abs(random.nextInt(94));//位码，0xA0打头，范围第1~94列  
		 
		 byte[] bArr = new byte[2];  
		 bArr[0] = (new Integer(highPos)).byteValue();  
		 bArr[1] = (new Integer(lowPos)).byteValue();  
		 try {  
			 str = new String(bArr, "GB2312");   //区位码组合成汉字  
		 } catch (UnsupportedEncodingException e) {  
			 e.printStackTrace();  
		 }  
		 return str;  
	 }  
	 
	 /**
	  * 随机生成性别
	  * @return
	  */
	 public static String randomSex(){
		 int i = random.nextInt(sexs.length);
		 return ("" + sexs[i]);
	 }
	 
	 /**
	  * 随机生成坐标
	  * @param lat
	  * @param lon
	  * @return
	  */
	 public static double[] randomPoint(double lat, double lon){
		 double min = 0.000001;		//坐标范围，最小1米
		 double max = 0.00002;		//坐标范围，最大1000米
		 
		 //随机生成一组给定坐标附近的坐标
		 double s = random.nextDouble() % (max - min + 1) + max;
		 //格式化保留8位小数
		 DecimalFormat df = new DecimalFormat("#####0.000000");
		 
		 String slon = df.format(s + lon);
		 String slat = df.format(s + lat);
		 
		 Double dlon = Double.valueOf(slon);
		 Double dlat = Double.valueOf(slat);
		 
		 return new double[]{dlat, dlon};
	 }
	
}
